public function addactivityAction()
 {
     $name = $this->getRequest()->getParam('name');
     $begin = $this->getRequest()->getParam('begin');
     $end = $this->getRequest()->getParam('end');
     $content = $this->getRequest()->getParam('content');
     $time = date("y-m-d  h:i:sa", time());
     $num1 = rand();
     $num2 = rand();
     $imagename = $num1 . $num2;
     $this->storeimage($imagename);
     $imagename = $imagename . ".jpg";
     $set = array('content' => $content, 'nums' => 0, 'begin' => $begin, 'end' => $end, 'name' => $name, 'create' => $time, 'image' => $imagename);
     //添加一个新活动
     $activity = new ActivityModel();
     if ($activity->insert($set) > 0) {
         $this->view->info = 'success';
     } else {
         $this->view->info = 'fail';
     }
     $this->_forward('result', 'globals');
 }